Advantech ARK-2250, Руководство пользователя

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ARK-2250 User Manual 14
2.3.1.8 Audio Connector
ARK-2250 offers stereo audio ports by two phone jack connectors of Line_Out,
Mic_In. The audio chip is controlled by ALC888S, and it’s compliant with Azalea stan -
dard.
Figure 2.10 Audio Connector
2.3.1.9 COM Connector
ARK-2250 provides four D-sub 9-pin connectors, which offers RS232/422/485 serial
communication interface ports. Default setting is RS-232, if you want to use RS-422/
485, you can find the BIOS manual and change settings.
Pin Audio Signal Name
1 Line out
2 Mic in
RS-232 RS-422 RS-485
Pin Signal Name Signal Name Signal Name
1 DCD Tx- DATA-
2 RxD Tx+ DATA+
3 TxD Rx+ NC
4 DTR Rx- NC
5 GND GND GND
6 DSR NC NC
7 RTS NC NC
8 CTS NC NC
9 RI NC NC
Note! NC represents “No Connection”.